improve get origin

Author: pxCaptcha

src/handlers/sdk-helper/helper.ts

@@ -14,9 +14,7 @@ export class SDKHelper {
  }
 
  protected async getOrigin(): Promise<string> {
- // @ts-ignore
- const origin = await this.page.evaluate(() => window.origin);
- if (origin == "null") return "";
- return origin;
+ const u = new URL(await this.page.url());
+ return u.origin === 'null' ? '' : u.origin;
  }
 }